#!/bin/bash
#
# Test that AIO requests are drained before an image is closed. This used
# to segfault because the request coroutine kept running even after the
# BlockDriverState was freed.
#
# Copyright (C) 2011 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# creator
owner=kwolf@redhat.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!

_cleanup()
{
	_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.pattern

# This works for any image format (though unlikely to segfault for raw)
_supported_fmt generic
_supported_proto generic
_supported_os Linux

echo
echo === Prepare image ===
echo

CLUSTER_SIZE=65536
_make_test_img 64M

# Allocate every other cluster so that afterwards a big write request will
# actually loop a while and issue many I/O requests for the lower layer
for i in $(seq 0 128 4096); do echo "write ${i}k 64k"; done | $QEMU_IO "$TEST_IMG" | _filter_qemu_io

echo
echo === AIO request during close ===
echo
$QEMU_IO -c "aio_write 0 4M" -c "close" "$TEST_IMG" | _filter_qemu_io
_check_test_img

# success, all done
echo "*** done"
rm -f $seq.full
status=0